Adding-machine.



B. DYSART.

ADDING MACHINE. APPLICATION FILED AUGL23, 1909.

Patented July 6, 191".

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B. DYSART.

ADDING MACHINE. APPLQCATIONHLED Ausl?. 19'09.

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B. DYSART.

ADDING MACHINE.

APPLICATION man Aue.23. 190:1.

Patented July 6, 1915.

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B. DYSART.

ADDING MACHINE.

APPLICATION FILED AuG.23, |909.

Patented July 6, 1915.

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B. DYSART.

ADDING MACHINE. APPLICATION FILED Auaza. 1909.

gam-,ed July 6, 1915.

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B. DYSART.

APPLICATION FILED AUG.23. I909. l

Patented July 6, 1915.

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B. DYSART.

ADDING MACHINE.

APPLICATION FILI-:D Aue.23. 1909..

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B. DYSART.

ADDING MACHINE.

APPLICATION HLED Auf-L23. |909.

Patented July 6, 1915.

UNITED sTATEs `PATENT OFFICE.

BIBN'EY DYsAnT, or sT. LOUIS, MISSOURI, AssIGNon, BY MEsNE ASSIGNMENTS, To i THE DALToN ADDING MACHINE COMPANY, or CINCINNATI, oHIo, A CoEronATIoN Specification of ietters Patent.

vam)ING-MACHINE. y

Patented July e, 1915.

Applicationled August 23, 1909. Serial No. 514,313. i

One type of sucha machine is illustrated inv the patent tov Helmick re-issued December f 27, 1904, No. 12,296, anda further exemplifi- .cation' of amachine of this character of an advancedorimproved type is set forth in the krapplication of Hubert' Hopkins, Serial No.` 140,390,.iledJanuary 24,1903, and the Britishl Patent'Nmf ofz 1904a` In each of these mac-hines;"there is a carriage containing severalseriesof pins and a single n series of ke s for'thediferent figures from F 1 to 9" and including 0. These keys are operable tofse't the pins in the carriage to represent ork register numbers and cause the carriage Atoyfmove to proper position whereinfitvmay coperate with ,the adding and recording mechanisms In these' machines, and so far'asI am informed'in all machines that have" ever been vconstructed with a movable carriage register of that general type, thev carriage is moved one step at each key operation the same for the digits and the 0 characters, irrespective of the number of characters contained in the number to be registered, which renders it necessary to vstrike a key once foreach figure in the number that is intended to be set up or lregistered in the carriage.

Y 'Many numbers found-in lists to be computed 4C-fon these machines contain a plurality of '.ciphers or 0 characters, such, for instance,

as $40,000.00. In the Helmick and I-Iopkins devicesas illustrated and described in said patent andv said application, in order -tosetupory register this number in the carriage, it Would'be necessary to strike the 'f" 4 key first, and thenv strike the 0 key six times consecutively. The'presentinvention, comprising mechanism coperating with the carriage and itsescapement whereby the carriage and pins l may be set or adjusted to representor register any number of 0 characters following one or more digits in the number by a single I operation of the novel form of carriage-control or tabulating mechanism'.` i This earriage-control or tabulating mechanism comprises a series of tabulating keys arranged in convenient relation in the keyboard and operable respectively` for causing the carriage to move two, three, four, etc., spaces at a single operation, thereby dispensing with the necessity of successive operations of the 0 key. These tabulating keys do not affect the pins in the carriage other than to cause the carriage to transport them to proper position with respect to the adding and recording mechanisms. This-involves a change in the arrangementof the pins for ,0 from the arrangement ofsuch pins as 70 found in the said Helmick patent and Hopkins application in which the pins for 0' as well as the pins for the remaining digits in idle position of the carriage are in unset position and are moved to operative or set position only when the keys are operated.

The present invention comprises a series ofV 0'pins which are normally in operative or set position and onlyfrequire movement of the carriage to transport'them to theirv80 proper registering position with respect to, the adding and recording Ameehanisins. When any digit key is operated to set a digit pin, the 0 pin inv that series will be moved to unset position at the same time that the digit pin moves to set position, after which movement of thel pins the carriage travels one space as required to bring the pins in proper position with respect to adding and recording devices.

In a companion application led by James L. Dalton and myself on March 29, 1909, numbered serially 486,498, there is disclosed a form of tabulatingmechanism cooperating with the carriage whereby the carriage may be moved to position to represent a plurality of Os by the single operation of the tabulating key. By the invention asde- 'scribed in said application, the carriage escapement is vreleasedauto permit the carriage to move until it is stopped by a stop' interposed by the operation of the operated tabulatingv key. After such operation of any one of the tabulating keys, it is impossible to set up or register any other digits in lower orders from the 0 already represented, for the reason that' the stop oper- 'ated by the tabulating key cannot'be displaced to permit further travel of the carriage. The present vinvention overcomes this deficiency and permits yany number of Os to be set in operative position,'and` also permits additional movement of,v the' carriage for the purpose of registering'the digits in lower orders. Each tabulatingkey `also is operable efectively to causethercar-y riage to movea like number of spaces, irre/1j spective of the number of digits yalready. set up in the carriage, which operation 4also is dif-v ferent from that of the co-pending application referredto. f

In the accompanying drawings Figure l is a side elevation with parts of the case removed, of a machine of the cross carriage type embodying the present invention. Fig. 2 illustrates a number set up orregistered in the carriage by the., single operation of two keys. Fig. 3 is a sectional view of thev keyboard portion ofV the ynaohine illustrating theV connections .from the tabulating keys. Fig. 4 is a plan view of the keyboard. Fig. 5 is a perspective view showing the keys between the tabulating keys and parts operated thereby. Fig. 6 is 'a vertical sectional View taken in front of the row of tabulating keys. Fig. 7 isa sectional view on the line a-a of Fig. 3. Fig. 8 is a.v perspective View of a portion of one of the connecting devices leading from the tabulating keys to the escapement mechanism. Fig. 9 is a plan kview ofthe carriage, the carriagecontrol mechanism and the tabulating devices. f Fig. 10 'is a perspective view of a portion of one 'of the links leading from the tabulating keys showing the parts operable thereby for releasing the escapement. Fig.

y11 is a side elevation of the tabulating and the escapement pins are operated. Fig.. 18

is a perspective view of pin-setting devices coperating with the back-step mechanism. Fig. 19 is a similar view of the retainers for the pin setting device. Fig. 20 is a side elovation `of the 'escapement devices and the' links for operating the escapement pins. Fig. 21 is a perspective view of one of the links detached. iFig. 22 is a side elevation of the register or pin carriage and the ends of Fig. 23 is a perspective `view the keys. showing the construction ofthe 0 key lever and its relation to the escapement bar.

In a register-carriage l,machine of the type above referred to as exemplified in the said patentand applications,and as known com'- l mercially, there is a 'seriesI of key levers l havin i ltheir terminals-or finger pieces2 arrange in suitable relation upon a keyboard.

These levers are pivoted at 3 and rearwardly M therefrom extend obliquely toward one side of the machine as shown in Fig. j9,a1`1d are provided with vertical extensions orhammers 4 which are arranged .in substantially the same vertical plane.

This is. the arrangement of all the keys exceptjthe 9, key on which there is no extension. Above the rear ends of the key' levers 2 parallel y rails 5 are mounted and a carriage 6 hasf its supporting rollers 7 operating on said rails. `Withi`n said carriage are severalse-v ries of pins 8 which are movable substantially vertically. In idle or rest position of the carriage the row of pins at the leftrela i tive to the operator isabove the extensions or hammers 4 on the key levers and are arranged in like series so that when the key lever is operated it will drive upwardly the corresponding pin in the first row in the carriage. The carriage has a rack 9 which meshes with the gear segment 10 attached to the escapement shaft 11. In this machine also is found an escapement bar 12 (Fig.12)

extending transversely upon the key levers, l

which, through coperating escapement mechanism hereinafter explained, is en'- trained with the escapement shaft 11,.v As

' the keys are operated this escapement bar. v will also be operated effectively to permit leftward movement of the carriage one vstep or space at each operation, such movementf.,`

being eii'ected by any suitable form of actuating devices, such, for instance, as by a connecting spring 13 (Fig.-10). Operation of any key leverin\ theseknown machines also operates the escapement bar effectively.l

to permit the carriage to move one step toward the left with respect to the operator which is suficient'to place another row-of pins in the carriage over the key lever terminals or hammersfl, whichmay then be op 5 pins are arranged in series from 0 at the erated to setup one pin in this row. The` rear to 8 at the front of the carriage,

,there being a permanent stop-piece 14 'attached to the front end of the carriage for the 9s, said piece extending across in front of all the rows of pins in the carriage. Therefore while the "9 key will'not set up any pin in the carriage, it will operate the escapement bar and permit movement of the carriage laterally. The key -levers op the machine of the Hopkins British patent and United States applicatiom'but the devices whereby said bar are entrained with and control the shaft 11 -are novel. These .novel devicesare under control ofthe tabulating keys and arehereinafter described in detail.

Above the carriage is a` pin-restoring device consisting of a series of arms or bars 15 1z0 erate the Aescapement bar 12 the same as in y' iup v under which the carriage moves when returned to idle position, and against the under Y thecarriage is moved to its idle position which is under said arms or bars, because said arms or bars are located below the planes of the upper ends of the up-raised pins. and, therefore, depress said pins when they are'rubbed thereagainst by the move- The inner ends of said arms-or bars are turned obliquely upwardly so as to enable the pins to start thereunder and be depressed by the sloping surfaces of the arms or bars against which they' are rubbedas the carriage moves. Lateral movement of the. carriage through operation of the keys and the escapement, places the pins which are set in proper position to be engaged by the gear devices 16 by which the-recording and adding mechanisms are V controlled.

The carriage is automatically7 returned to idle position at the right of the machine rely ative to the operator after'each number-has been recorded or added, said operation being effected by the rack 17 meshing with the segment 18 mounted loosely on the escapement shaft and having 'a projection 19 adapted to engage with a like'projection on the part 20 rigid with the escapement shaft.

`Movement of the rack may be effected in various ways, and after moving the carriage to its idle position the rack i's moved forwardly to its idle position in which the segment 18 holds the projection 19 thereon away from the projection on the arm 20 to permit leftward movement of the carriage when the keys are operated.

These machines also include what is known as -a main or operating shaft 21 adapted to be rocked by a handle or lever 22 each time a number is recorded or added. The Subj ect matter of the present invention coperates with the mechanism above described and enables the operator to move the carriage one or more spaces at a single movement. This mechanism includes a series of tabulating keys having connection for coperating with the escapement mechanism to cause the carriage to be drawn leftwardly until stopped bv an interposed pin adjusted by operation of the tabulating keys. In the construction shown there is a slot connection 27, whereby the depression of any key will rock the corresponding rod 24. The keys are guided by brackets 28 on the cross bar 29. The stems of the keys also rod is connected to the second key, and so on with the entire row of keys, the lowermost rod being connected with the key at the left. The left ends of the rods arearranged in staggered relation as shown in Figs. 6 and 7, the upper rod being the shortest and the lowest rod being the longest.

To the left end of each rod 24 an upwardly extending arm 31 is attached-(Figs. 3, 6 and 8). Links 32 extend from said arms respectively and are connected to the ends of arms 33, (Figs. 9, 12 and 13) attached to the upper ends of vertical rods 34 mounted in the supporting frame 35 near the rear of the machine. The link 32 constituting the connection from the key 23 at the left, which is also the key for causing the great, est movement of the carriage at a single operation, is pivoted to a vertical arm 35 attached to a bail 36 pivotally mounted at 37 (Fig. 3). The opposite arm of the bail also has avertical arm corresponding to the arm 35, and between said two arms immediately below the links 33 a bar 38 is supported (Figs. 3 and 9). Each of the links 32, except the one at the left which is pivoted directly to the arm 35, has. a projection 39 bearing against' the rear of the bar 38 (Figs. 3 and 10)` whereby depression of any one of the tabulating keys will move forwardly the bar 38 and the'vertical arm supporting the same, and thereby raise the rear portion of the bail 36 to which said or more spaces toward the left by the operation of one or more digit keys. The first step of the carriage leftwardly, however, moves the lip 40 beyond the member 41, after 'which any one of the tabulating keys may be operated. The escapement bar 12 will -also be operated by the tabulating keys, there being aprojection 42 on the bail 36 extending under a hook-1:3 on the escape- ,125

ment bar, whereby operation of the bail will raise said escapement bar but' will permit operation of said bar by numeral keys without corresponding movement of the bail 36.

.A curved arm 44 (Fig. 14) is attached to the lower end of each of the vertical rods 34.

l'ao

A link 45 is pivoted to each of the arms 44,

said links being nested at the shaft 11, having elongated holes 46 (Fig. 21) to receive said shaft. These links project forwardly beyond they shaft 11 as shown in Fig. 11.

The 1 escapement mechanism controlling step by step movement of the carriage, .and which is 4itself controlled by the escapement bar 12, includes a segmental plate 47 which is attached to the escapement sh'aft 11 and is provided with a series of radial channels 48 within which areV mounted sliding escapement pins 49, each of which has a projection 50 extending downwardly through a slot in the supporting plate and preferably carries a small roller 51 below the escapement plate. In -normal or idle position thesev sliding pins are in retracted position in the channels as shown in 'Fig 14, being yieldin-glyjretained in such position by the small springs 52, one of which` is connected to `each-pin andthe escapement plate 47. Said springs are also effective to hold the pins in their outward positions as will be obvious bv reference'to Fig. 14. A plate 47a covers the escapement pins, protecting them from foreign substances and holding them from displacement.

A stationary projection ortooth 53 on the escapement plate in idle position of the carriage engages with the escapement pawl 54 supported by theescapement bar 12. A sec ond projection 55 nearer the opposite end of the plate 47 defines the extent to which the carriagev may be moved in any instance, and the sliding pins 49 are supported between the two proj ectionsv 53 and 55 at equal distances from each other. Whenany one of the'numeral keys is operated therefore, is necessary that the first pin 49 bemoved radially;A in order to constitute an abutment fory the escapement pawl 54. For accomplishing this movement I provide connections from the key levers 1 whereby, at each operation yof any of said levers, one of the pins 49 will be moved. An arm 56 forms,

with another arm 57 -'which is vertical, a bell crank lever (Fig. 9). The arm 56 extends'rearwardly in substantially a horizon.-

tal plane, and is pivoted to the escapeinent bar 12 so -that when any kev lever 2 is operated the bell crank lever will be rocked. Al link 58 has its front end pivoted to said arm 57 and its rear end to the arm 59 attached to the rod 60 mounted in the frame 35. The lower end of the rod 60 is connected to an arm 61 (Fig. 14) through which a link 62, similar to the links 45 and guided similarly by the shaft 11. extends' toward the escapement segment. The front end of the link 62. which is below all of the links 45, is provided with a vertical extension 63 (Fig. 20) terminating adjacent tothe projection 50 on the escapement pin 49 next to the permanent tooth 53.'

From the foregoing it will be seen that operation of any one of the keys 2 will cause the link 62 to be moved forwardly, causing its projection 63 to engage with the roller on the projection 50 in advance thereof. This' pushes outwardly the pin 49 into the path of the escapement pawl 54 and, as the escapement4 plate 47 is turned by the movement of the carriage, the pin Which-had' been set will constitute an abutment for the pawl, thereby stopping the escapement and the carriagein position to place the next 'row of pins in the carriage over the key terminals orhammers 4. This movement of the escapement pawl also brings the projection 50 and the roller thereon on the next pin 49 in front of the projection 63, and successive operation of the keys 2 will successively move the pins 49 outwardly, causing the carriage to be moved step by step across the machine as the digits in the --number are ,successively set up in the carriage. It will be noted also that the carriage may move until stopped by one of the pins 49, and that unless one of said pins is moved the carriage could move to the full extent possible, that is until stopped by engagement of the permanently positioned tooth 55 with the escapement pawl.

The arms 45 are also provided with proj`ections.45a and are operable by the tabulating keys eliectively to push-outwardly the pins 49` as said ypins move across in front of said projections 45. It will be seen by reference to Fig. 2O that the projections 45 become successively shorter toward the uppermost link 45 fon' which there is no projection since the end ofl said uppermost link is in the same horizontal plane with the projections 50 on the pins 4 j The links 32 as well as `the link 58 arey actuated rearwardly by springs 64 connected to said links and to the arm 65 rigid with the frame of the machine.. Said-springs restore the tabulating keys and the parts con-v nected therewith to idleposition after each gated holes 46.

The transverse row of ypins 8 at the rear of the 'carriage (Fig. 22) representing 0 are normally inv operativeV or setposition. It is, therefore, necessary that when the other pins are utilizedvto register vor representnumbers the 0 pins shall be pressed downwardly to idle position. A bail 66 extends across the rear portions of the key levers 1 (Figs. 9 and 12). A link 67 has its lower end pivoted to the bail 66 and its upper endis pivoted to the lever 68 carried by a bracket 69 (Fig. 22) and extending rearwardlyv over the carriage. Said lever 68 is provided with a hammeror driving portion 70 which in idle position of the lany other pin in thatlseriesis raised bythe key hammer 4. The carriage then moves carriage is above rthe 0, pin at the left with respect to theoperator. Operation of `any one ofthe ligure keys except the key for 0 will raise the bail 66 and causethe hammer portion 70 of the lever 68 to depress the 0 pin'y therein,' at`the same time that one space leftwardly, bringing another row of pins over the key f terminals and the 0 and causing .the carriage to be moved leftwardly, does not affect the bail 66, there be: ing a notch 71 in the .Of key lever, per# mitting it to beoperated'without engaging the bail 66. This permits the carriage to "move as required to transport the k 0H pins therein to operative position with respect to the adding"fahdmrecording mechanisms. When the Vcarriage returnsto idle position any .0 pins therein which had been depressed will be raised again to their set'ory operative positions by a restoring bar or arm 71a similar lto the parts of the restoring device 15 whereby the remaining pins are depressed. In this wayf when the carriage ism idle positlon all of the 0 pins kare maintainedmin elevatedor set position, ywhile all of the remaining pins in the carriage are "held depressed in theiridle -orfinoperative adjustments`- i v l As above stated in mentionin the shaft 21 and the handle 22; said sha t is-rocked after each number-fio be added and recorded is set up inrttlie carriage. The initial move- 40fementof the shaft causes all, of thenumber keys as well as allfof the tabulatin'g keys to' be locked-against operation so that jthere can be 'noi additional movementrof the carriageuntil after the number previously set up thereinhas been cleared. Upon the shaft 21'is a segmentalarm 72 providedwith a pin 73 which iii idle"position of Vtheishaft engages the front end of the linky 74.l The rear end ofthe link 74 ispivoted near the lower edge of't'leswingin plate 75 suspended ina bracket supporte by a front raile5. A spring 76 `connecting the :link 74` with a statlonarypart', actuates said link and the late7 5 A, orwardly when saidlink is released y forward movement of the segment 72. This forward 'movement of the plate 75 causes its lower-'edge to be positioned im y mediately over a projection 7 7 on the escapement bar 12, thereby preventing operation of said escapement bar and of the keys.

This is effective to prevent operation of the number keys 2 and also prevents operation of the tabulating keys which will be locked by engagement of the projection 42 (Figs.

11 and 12) on the tabulating key bail under the hook 43 on the esca ement bar. Return of the carriage and ot er parts, including the shaft 21 and the se its position above the projection 77, thereby releasing all of the keys for other operations.

y .On some. occasions, after 'a number has been set up 1n the carnage, 1t 1s desirable to movethe carriage one or more spaces toward ldle position without clearingthe entire number from the carriage. For accom- ,plishing this I have provided a back-spacing mechanism including a keyand connections whereby said key maybe operatedto move the'carriage step by step tward itsidle or restV position. The' key 78 has a stemprojecting through the base'of the machine `below which it'is pivoted to one armolfjrthe bell crank lever 79. A spring 80 encircling the key stem operates to restore the key land the connected parts to idle position after each operation.` A link 81 connects the other arm of the lever 79 with an arm 82 (Fig. 1)

on the lower end of a shaft 83 extending through the base of the machine. An arm 84 attached to the upper end of the shaft gment 72 thereon, "causes the link 74 to move the plate 75 from 83 has connected thereto a link 85 extending forwardly and having its front end pivoted to an arm 86' pivoted to the escapement shaft 11. A pawl or hook 87 is supported by an arm S6 and in idle position rests against an adjustable abutment 88. A toothed segment 89 is integral or rigid with the part 2O previously referred to as being -rigid upon the shaft 11. Depression of the key 78 will,

through the connections just described,

swing forwardly the arm 86 and cause the pawl or hook 87 carried by said arm tofbecome -engaged with the toothed segment 89, said' pawl being actuated by a spring 87effectively to` engage said segment. The key 7 8 has sufficient movement to move'the segment89 and thereby rotate the shaft 11 and its connected parts a distance sufficient to 'move the carriage one spacetowardidle position.. Another arm 90 attachedrto the shaft 83A has a link 91pivoted thereto ex- A tending forwardlyand guided by 4the-.shaft 11. A vertical extension 92 (Eigsf19 and 21) on the front endA of the link 91'has a lateral extension 93 thereon. ,l Depression of the key 78 will also move themliiik 91forwardly and cause'the projection @3,0m said link to be engaged by the roller 5l on the projections on the escapement pins 'to engage therewith, thereby pushing outwardly the escapement pins as they pass said projection 93. This device is necessary in order to adjust the escapement pins in lower orders which may have been retained in inoperative position by previous manipulation of any of the tabulatingkeys. A spring 94 connecting the link 85A with the baseoffthe tion-'92 on the link 91 extends in front of a bracket 95 connected to the sliding frame part 96 supported under the escapement segment. Said frame'part is supported by a movable arm 97 (lFigs. 11 vand 14) provided with a slot, similar to the holes 46, through which the escapement shaft l1 extends. The

rear end ofthe arm 97 has an elongated opening in which is mounted a roller 98 suported on the 'lower end of the arm '99 atl tached to the rear rail 5. The roller 98 is jections 50 (F1g.x15).

grooved, the flanges formed by the groovesl embracing said arm97 andthereby sustaining said arm in proper adjustment.

The frame part 96 is a' restoring device ,whereb'y'the escapement pins 49 are autol matically restored to idle or retracted position when the carriage and the escapement return. An arcuate portion 100 on the part 96 extends around in fronti o fall the pro- The parts-96,.and 100.*are held in `advanced position away from thejprojections 50 by a spring 100a extending therefrom to the escapement bar 12.

When the carriage and escapement return to theirhome or idle position a projection 101 on'the frame part 96 is encountered by a cam shoulder 102 on the escapement plate 4T and is thereby forced rearwardly, causing the part 100 to engage the projections 50 and thereby retract all of the' -escapement pins.' The carriage and yes'capement then assume their idle positions in which the pawl 54 engages'the tooth -53`.- In this position the springA 100a holds the frame 96. and 100 advanced out of engagement with the escapement pins to permit movement of said pins by the keys.

` In operatlon of the machine the number keys 2 may be operated consecutively'to set up any desired numbers in the carriage, said keys lbeing operated the same as in the machines herein lreferred to. Whenever it is V- desired tomove the carriage two` or more thereby operating the bail' 36.` The bail 3 6 'l "as described has a pin 42 for lifting the escapement'bar (Fig. 12), thereby permitting the actuating device for the carriage to rotate the shaft 11 until stopped by the pin 49 which' had just been positioned.` This op- -v`eration is the same for all of the tabulating keys, each tabulating key being operable effectively to cause the ,carriage to move the number of spaces indicated by said key from of the'principaldifferences between the subject matter of this application and the joint application No. 486,498 above referred to.

The back space mechanism may be operatedatany time to move the carriage one or more spaces, as desired, toward idle position,

' and thereby throw out one or more of the last digits struck 'on the keys.

I-am aware that there may be modifications and alterations in the construction and arrangement of the parts embodying this invention without departure from the spirit and scopeof the invention, and I do notrestrict myself to identical features of construction or arrangement, but

What-I claim and desire to secure by Letlters Patent is'- l `1. In an adding machine, a series of rows of pins arranged in numerical orders, keys operable to set selected pins in said orders successively to represent numbers, mechaorders `successively under control ofV said keys whereby-any `key may set a corresponding pin 1n each of saidV orders, means connisrn for bringing 4the pins of the several trolled by each key for moving the correv spondingpins in one direction, and means A under control of all of said keys operable to move another pin in the several numerical orders successively in another direction.

2. In an adding machine, thecomblnation of a ser1es of key levers, a ser1es of rows of pins arranged in numerical orders, the pins in each row corresponding to said levers, respectively, means whereby each lever will move its correspondingl pin in one of said orders inone direction at yeach operation of said lever, means controlled by each of said levers `for moving another pin in the same order; in another direction lat each opera'- tion, and lmechanismI for bringing all of said vrows ofpins successively under control of said levers, substantially as described.

3. The combination with a carriage, means for moving said carriage laterally, a shaft controlling lthefmovement of said carriage, and keys for controlling the operationof said shaft in one direction, of an` arm pivoted on said shaft, an element rigid on said shaft adjacent to said arm, a movable device on said arm for engaging said element,v and connections for actuating said arm andengaging'said device with said element effectively lto rocksaid shaft to return said carriage step by step to idle position.

, 4. The combination with a carriage, means for actuating said carriage' in one direction, and a shaft controlling movement of said carriage and being operative to move said f carriage in the opposite direction, of a pivv oted arm, an element rigid on said shaft, a

device'on said arm adapted to engage with said element, means normallyll holding said device disengaged from said element, means for actuating-said arm, and means for engaging said device with said element when said arm is actuated effectively to rock said shaft and thereby move said carriage step by step toward idle position.

5. In an adding machine, a carriage,'a row of 0 pins supported in said cariiage, rows of pins for other digits supported in said' carriage, devices for moving selected ones of said last-named pins in one direction and corresponding ones of said 0 pins in another direction to represent numbers,`

, means for moving said carriage under cona series ofdigit keys operable to `set upsaid l'digit pins and to move said 0 i pinsan'd to cause said 4escapement to operate, and mechinoperative position, and an escapement controlling lateral movement of the carriage, of'

anism` operable to cause any one or more of said digitvpins to be returned to-idle position While others thereof remain in their operative positions, substantially .as f described,

7. In an adding mechanism operable to restore any desired number of said pins to "theirddle'positiom operative, substantially as described. w

8; Inl an adding machine, a series of rows of pins'arranged in numerical orders, a series of key levers for setting said' pins to represent numbers` mechanism for bringing thepins of the various orders successively under control of the samekey levers, means under control of each key leverfor 'moving a corresponding pin -in eachv of said orders under control of lall of saidj'key' levers. for

moving another pin in eachsorder in :another direction concurrently with the movement o f the corresponding pin, substantially as'described.

' bringing successive orders of said pins into machine, a ca rriage, a ,k v.Series of pins therein normally in,operai-,ival l position, other serie'sfof pins' therein nor-y mally in' inoperative position, aserie's, fof

"'tially as described. .successively in Voiiedirection, andA 'a device 9.r In an adding machine, a support, series of pins mounted in numeral orders in saidV support, a series of manually operable levers, mechanism controlled by said levers for position to be operated by saidlevers, elements actuated by said levers eiiectively to engage with and move in one direction a corresponding pin in each of the numerical orders successively, and a device under control of all of said levers for actuating another of said pins in a direction opposite to the movement of the pin corresponding to said levers as aforesaid, substantially as de 'i scribed. 10. In an adding machine, the. combination with a series of racks,l stops arranged in numerical orders for preventing movep ment of said racks, stops arranged in nu. merical orders for limiting movement of said racks, a series of keys, mechanism controlled byI said keys for positioning successive orders of said stops in position to be operated by said keys, parts actuated by said keys" for moving said second-named stops successively to position to limit movement i of said racks, and a device controlled by all of said keys for moving said first-named stops positively to position to enable said racks to operate, as an incident to the operation of said keys and said second-named Stopsi In an adding machine, the combinatiqiirwith a series of racks, stops for preventing'inovement of said racks, and series of. stops arranged in numerical orders for limitingmovement of said racks, of levers Afor moving. said second-named stops positively to position to limit movement of said racks,.\

means for bringing said stopssuccessively l to *position to be `operated by .said levers, and` means-` for `moving one of said 'firstamed'fstopsfpositively to position to enab oile- ,rack 'tOloperate, incidentally tothe fkeysoperable to move said first namedwpin's]` 1 to inoperative position and to move said "i -last named-pins into operative position, and` tionb e'acl'i lever, substantially aslde.-

-. -anj adding machine, differential comprising .a series of stops -ar- :ranged`v in `numerical orders and including vstops for the several digits in each order,

keys .for setting-said stops to represent numbers, means for positioning successive orders another direction in each of vsaid orders by successive operations of ,said key, substan- 13... In an -adding machine, the combination of a movable carriage, series of pins in l said carriage arranged in numerical ordersi and including pins for the digits in each order, a series of key levers, -meclianism whereby successive operations of any of said key levers will move a corresponding pin positively in one direction in each of said'y orders successively, a leverfor moving others of said pins Vin, an opposite direction, and means under control of said key levers for actuating saidsecond-named lever effectively to move said other stops successively, substantially as described.

l-l. In an adding machine, a laterallyl movable support, pins in said support set' table to represent numbers, means for movring said support to and from its idle position, means for raising certain of said stops when sald support 1s moved toward idle position, and means for depressing the remainder of said stops when said support is moved toward its idle position.

15. In an adding `machine, a laterally movable support, a series of .D pins in .said support, series of pins representing digits in said support, means for setting said pins to represent the digits of numbers, means for movingsaid support incidentally to the setting of said pins, means for restoring said support-to idle position after said pins have been set, and means for de-v pressin the pins for representing digits and raising the 0 pins incidentally to the movement of said support to its idle poof said key levers, substantially as described.

17. In an adding machine, differential mechanism comprising a series of rows of pins arranged in numerical orders and including a series of pins in each order corresponding to digits, a series of key levers corresponding to the digit pins in one of said orders, mechanism under control of said key levers for positioning the several rows of pins successively in position to be acted upon by said key levers, means whereby each of said key levers will move in one direction a corresponding digit pin upon each operation of said key lever, a lever for moving others of said pins in another direction, and means for actuating said last-named lever by-any of said key levers to move in another direction another pin in the same numerical order with the pin acted upon by the key lever which may be operated, substantially as described.

18. In an adding machine, differential mechanism comprising a series of pins nor- `moving others AofY said mally inv position to representfO and arranged in numerical orders, and other series of pins arranged Ain numerical orders and settable to represent the digits of-numbers, in combination with a key lever for each pin in one of said second-named series of pins, means whereby each of said key levers will move a corresponding pin in one of said second-named series of pins on each operation of said lever, mechanism controlled by said key levers for positioning successive orders of said pins in position to be moved by said key levers, and a device under control of all of said key levers for moving one of said. O pins on each operation of any of 'said key levers and in a direction opposite from the direction in which the corresponding digit pin is moved, substantially as described." f

19. In 4an adding machine, the combination with series of pins settable to represent numbers, a laterally movable support in which said pins are mounted, means for setting said pins to represent numbers, `means for moving said support to and from its normal position, and means for depressingcertain of said pins and raising,v

others of said pins incidentally to movement of saidsupport to its idle position.

20. In an adding machine, the combination with a series of pins, a lever foriactu-l ating said pins, means for moving said pins successively adjacent to said lever, a series of numeral levers, and connections operated by said4 numeral levers effectively to operate said first-named levers.

21. Inv an adding machine, the combination with series of digit pins varranged in numerical orders, a lever for actuating certain of said digit pins, a series of numeral levers for actuating others of said digit pins, means for actuating said rst-named lever by said numeral levers, and mechanism controlled by said numeral levers for moving said pins to position different orders thereof successively, adjacent to said levers, substantially as described.

` 22. In an adding machine, the combination with series of pins arrangedV in numerical orders, a device for actuating certain of said pins, key actuated elements for pins, connections whereby said key actuated elements .will operate said device, mechanism for positioning successive orders of said pins in combination to be operated, and mechanism for'restorl mg said pms to ldle positlon, substantially as described.

23. In an adding machine, a movable carriage, series of digit pins mounted in said carriage, mechanism for setting said pins to represent numbers and moving said carriage from a certainl starting point, mecha-` nism for restoring said carriage to its starting point, and means for moving certain of b is representing the digits of the numnormally in inoperative position, a shaft controlling movement of said carriage, digit keys for moving said 0 pins to idle position and moving said digit pins to operative position, means for controlling movement of said .shaft by said keys, tabulating devices for controlling said shaft independent of said keys whereby the carriage may be caused to move laterally, andmechanism for moving said shaft to actuate the carriage any desired distance toward idle position from Whatever position said carriage occupies, substantially as described.

25. In an adding machine, the combinationv with a carriage, a shaft controlling movement of said carriage, and means for setting up numbers in said carriage and moving said carriage under control of said shaft, of a pivoted arm, and element rigid upon said shaft, means for establishing a connection between said arm and said element, means for actuating said arm and thereby said element. and said shaft effectively to move said carriage step by step toward idle position to'erase the digits of the number one by one from said carriage, and means for disconnecting said arm from said element automatically. y

In testimony whereof I hereunto aflix my signature to this specification, in tlie presence of two witnesses, this 16th day of August, 1909.

A BIRNEY DYSART. [Ls] Witnesses: i

J. D. RIPPEY, H. E. COLLINS.

Galilea of this patent may he obtained for iivecents each, by addressing the "Commissioner o! Patents, Washington, ID, C. 

